Efficiency is one of the key parameters to consider when selecting the correct switch mode power supply. Pressure on equipment designers to deliver more functionality in a small size can result in more power being required which has a direct effect on the form factor of the power supply. The consequence of this is that power supplies now have to deliver more output .power in a smaller form factor. This, coupled with the need to meet more demanding environmental legislation and to minimize or eliminate fan cooling, is forcing equipment designers to look for more efficient power supplies.
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